Experimental investigation of synergistic additives in enhancing water mist suppression of engine oil fires

IF 6.4 2区工程技术 Q1 THERMODYNAMICS

Case Studies in Thermal Engineering Pub Date : 2025-04-19 DOI:10.1016/j.csite.2025.106175

Ye-Cheng Liu , Zhi-Xiang Xing , Yan Tang , Fang-Chao Cao , Xin-Yue Ma , Long-Tai Qi , An-Chi Huang

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引用次数: 0

Abstract

This study investigates the mechanisms and efficacy of water mist (WM) in suppressing engine oil fires. The incorporation of additives, particularly surfactants, enhances the physical and chemical properties of WM, enabling it to emulsify and infiltrate engine oil products more effectively. This optimization of droplet dimensions improves atomization efficiency, fire suppression performance, and emulsification capabilities, resulting in a highly efficient aqueous fire-extinguishing system. Among the additives studied, alkali metal salt NaCl has been extensively researched. To evaluate the synergistic effects of composite surfactants, this study compares the performance of composite anionic-nonionic surfactants with NaCl salts and pure WM systems. The results of oil pool fire experiments showed that the improvement effects of additives NaCl and LAS-FMEE (1:1) on the WM system were 18.39 % and 22.99 %, respectively. The screened composite surfactant fire extinguishing agent demonstrates superior enhancement effects on WM (water-mist) fire extinguishing compared to metal salts, effectively reducing toxic CO gas production in combustion systems. Additionally, omposite surfactants significantly enhance fire suppression efficiency, offering a promising approach for improving WM-based fire extinguishing technologies.

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增强水雾抑制发动机油火的协同添加剂的实验研究

本研究探讨了细水雾（water mist， WM）扑灭发动机机油火灾的机理和效果。添加剂，特别是表面活性剂的加入，增强了WM的物理和化学性能，使其能够更有效地乳化和渗透发动机机油产品。这种液滴尺寸的优化提高了雾化效率、灭火性能和乳化能力，从而形成了高效的水灭火系统。在研究的添加剂中，碱金属盐NaCl得到了广泛的研究。为了评价复合表面活性剂的协同作用，本研究比较了阴离子-非离子复合表面活性剂与NaCl盐和纯WM体系的性能。油池火灾实验结果表明，添加剂NaCl和LAS-FMEE（1:1）对WM体系的改善效果分别为18.39%和22.99%。与金属盐相比，所筛选的复合表面活性剂灭火剂对WM（水雾）灭火的增强效果更好，有效减少燃烧系统中有毒CO气体的产生。此外，复合表面活性剂显著提高了灭火效率，为改进基于水泥浆的灭火技术提供了一条有前途的途径。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Case Studies in Thermal Engineering Chemical Engineering-Fluid Flow and Transfer Processes

CiteScore

8.60

自引率

11.80%

发文量

812

审稿时长

76 days

期刊介绍： Case Studies in Thermal Engineering provides a forum for the rapid publication of short, structured Case Studies in Thermal Engineering and related Short Communications. It provides an essential compendium of case studies for researchers and practitioners in the field of thermal engineering and others who are interested in aspects of thermal engineering cases that could affect other engineering processes. The journal not only publishes new and novel case studies, but also provides a forum for the publication of high quality descriptions of classic thermal engineering problems. The scope of the journal includes case studies of thermal engineering problems in components, devices and systems using existing experimental and numerical techniques in the areas of mechanical, aerospace, chemical, medical, thermal management for electronics, heat exchangers, regeneration, solar thermal energy, thermal storage, building energy conservation, and power generation. Case studies of thermal problems in other areas will also be considered.